It was the afternoon of December 24, but I had to work. The only thing that brightened my day was the beautifully decorated Christmas tree and a gift—a dozen long-stemmed red ___21___. As I was cleaning my office，a lady urgently needed to talk to me. I noticed a young，___22___ woman with a baby in her arms nervously，she explained that her husband, a prisoner，was my next patient. She told me she wasn't ___23___to visit her husband in prison and that he had never seen his son. She wished to let the boy's father sit in the waiting room with her as long as possible ___24___ I called him for his appointment. Since my timetable wasn't full，I agreed. ___25___ , it was Christmas Eve. A short time later, her husband arrived. The woman's tired face ___26___ like our little Christmas tree when her husband took a seat beside her. I kept peeling（偷看） out to watch them laugh, cry, and share their child.
At the end of the appointment, I wish him a Merry Christmas---a difficult thing to say to a man heading back to prison. He smiled and thanked me. He also said he felt ___27___ by the fact that he hadn't been able to get his wife anything for Christmas. ___28___hearing this，I was inspired with a wonderful idea.
I'll never forget the ___29___on both their faces as the prisoner gave his wife the beautiful roses.I'm not sure who experienced the most joy-the husband in giving, the wife in receiving，or myself in having the opportunity to share in this special ___30___.
此处选择（）
介词on可表示时间，意思是“当······时”，“一······就”，后面常跟v-ing或名词，故选C.
我国保护少年儿童权益的专项法律是《中华人民共和国未成年人保护法》。（ ）
MP3（ ）。
计算机软件是指（ ）。
下面哪一项不属于维护交易安全原则的内容？（ ）
围绕《建国以来的重大科技成就》一课，做一个教案。
请围绕“城乡发展一体化”写一篇小论文，题目自拟，角度不限，要求：结构完善、条理清晰、有说服力。
在国际关系中，第三世界国家历来是中国团结合作的对象，因为 ①第三世界国家是国际社会一支重要的政治力量 ②团结第三世界国家符合中国的国家利益 ③合作是第三世界国家共同发展的必由之路 ④第三世界国家在南北关系中处于主导地位（ ）
微观经济学要解决的问题是（ ）
机关文书部门或业务部门在年终或第二年上半年对归卷的文件材料进行整理等工作，称为（ ）。
20世纪70年代中国外交有了重大突破和转机，转变的关键是（ ）
